Home / 190,194.28-262,468.10-105,311.32

Finding the Fourth Proportional to 190,194.28, 262,468.10 and 105,311.32

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Solution

The fourth proportional to 190,194.28, 262,468.10 and 105,311.32 is: 145,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,194.28 : 262,468.10 = 105,311.32 : x
  2. Step 2: Convert to fraction form
    190,194.28/262,468.10 = 105,311.32/x
  3. Step 3: Cross multiply
    190,194.28x = 262,468.10 × 105,311.32
  4. Step 4: Simplify right side
    190,194.28x = 27,640,862,068.89
  5. Step 5: Solve for x
    x = 27,640,862,068.89/190,194.28
  6. Step 6: Final answer
    x = 145,329.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.